+1 for the eaerly morining feeling much safer than late evening, although I suspect that it is just the minor nuisances that are around more in the evening, I won't run around here after dark , although I'm happy enough beofre it gets light in the winter months.
It dpends.............you sat you've beeen very erratic- have you been running at all? How many times per week? What is you longest weekly run in the last month?
You probably needed a bit of down time after 2 marathons over a 2 month stint, and even if you've only been gently "ticking over" you will have some residual base fitness.
I think it is easy enough to get marathon fit, but a few minutes off your time may bea push.
I suspect someone much more informative will be along soon, but they'll want more info about your running pedigree ( were these your first 2 marathons?), and your recent training- can you give more info?